Paving block



Patented pr. 6, 1926.

UNITED sTA'TEs i ALBERT BANDALL vwnnns, orsLINEonD MANOR, ENGLAND.

IY'AVING IBLO CK.

Application med October 5, 1925. smal nofeasss.

ToaZZ wlwm it may concern: v p

Be it known that I, VALBERT RANDALL lVELLs, asubject of the King ofGreat Britain, residing at Slinfold Manor, in the county' of Sussex,England, have invented certain new and usefulI Improvement-sin PavingBlocks, of which the following is a speoification.

This invention relates.. to .paving blocks and has for its objects toprovide such devices which are self setting,require no jointi ing, canbe lifted from position at will and which have non-slippingwearingsurfaces.

In general paving blocks made according to the invention areLmanufactured of any material suitable for paving and comprise a bodyhaving an upper wearing surface the sides being formed with alternateprojections and recesses so arranged that when in position theprojections on one block come in the recesses of a number of adjacentand simlarly Shaped blocks. Each block is formed with a number ofprojecting feet upon which it stands, suitable padding materialpreferably being located beneath the feet and similar padding materialbeing disposed between the projections of one block and the recesses ofadjacent blocks. A key hole is provided at the centre of each blockextending therethrough and the wearing surface is formed With concentricridges or beads to prevent slipping the beads being discontinuous whererequired to form drainage grooves.

A preferredform of paving block made according to the invention is shewnon the drawing in which Fig. l is a plan view of a block with a numberof adjacent and similar blocks.

Fig. 2 is a sectional elevation on the line 2-2 Fig. 1.

Fig. 3 is a section of vthe surface on the line 3-3 Fig. 1.

Fig. 4 is a sectional elevation on the line 4-4 Fig. 1 and Fg. 5 is aperspective view to a smaller scale shewing the under side -of theblock.

In the drawing the body of the block as shewn has a substantiallycylindrical centre portion with three lateralprojecting portions atequiangular distances apart, forining between them three recessed orre-entrant portions. i

Each block has six feet 6 projecting from the bottom thereof and eachfoot has a pad 7 attached to it upon which it stands. Other pads 8 areinserted upon three sides of each V.block which. come into contact w-ithunpadded portions of-adjacent blocks as shewn in Fig. V1. The p-ads are.Zpreferably 'made of material such as bituminous felt.

Ity will be seen therefore that eaclrblock makes six padded Contactswith the surface on which it stands and six padded Contacts with thesix,y surrounding and adjacent blocks. The block is thus held immovablyinterlocked, all pressureiowing to the particular form of the blockstending to keep .their relative positions exactly true.

The parts 7 and 8 are preferably of bituminous felt or other similar orsuitable material. A i

9 is a key hole passing through the centre of each block by which it canbe lifted and the surface of each block is beaded concentrically asshewn at 10 to form a nonslipping surface. The beads are discontinuous,

and crossed by drainage grooves 11, see Figs.

l and 3, which yopen into the key hole 9 or the space between the blocksbounded by three adjacent projecting portions. k VVhat I claim anddesire to secure by Letters Patent of the United States of Ameriv ca1stli A paving block comprising a body having an upper wearing surface,a number of feet projecting from the under surface of the body, pads ofa material such as bituminous felt beneath the said feet, alternatelateral projections and recesses for co-operation with recesses andprojections respectvely of similar surrounding and adjacent blocks, padsof a material such as bitumi-v nous felt upon alternate side faces, anda key hole extendlng from the upper wearing surface to the under surfacefor the purposes set forth.

2. A paving block comprising a body having an upper Vwearing surface, anumber of feet projecting from the under surface of the body, pads of amaterial such as bitumivnous felt beneath the saidV feet, alternatelateral projections and recesses for co-operation with recesses andprojections respectively of similar surrounding. and adjacent blocks,pads of a material such as bituminous felt upon alternate side faces, akey hole extending from the upper wearing surface to the under surfaceand beadings formed in the upper wearing surface for the purposes setforth.

3. A paving block comprsing a body having an upper wearing surface, anumber of feet projecting from the under surface .of the body, pads of amaterial such as bituininous felt beneath the said feet, alternatelateral projections and recesse fr cooperation with reoesses andIprojeotions respeetively of similar surrounding and adjacent blocks,pads of a material such as b'iturninous 'feltupon alternate side faces,a key hole eX- ten'ding from the upper wearing surf-aceto the undersurfe and disc'ontinuous beadiigs formed in the upper wearing' surfacefor the purposes st frt-h. i

4. A paiiingz blo'e'k eoinprsing body formed fri a b'stanti-allyoylidi'ical centre portion iif'it-l three similar* later'al projectingfIp port-ions' at qiii-angular dis'- taiices apartL leayiiig' betweentlieii three similar lateral recessed portions, adapted to receiveproje'otiiig portons, o'f similar surrounding and adjacent blocks, thesaid body having an upper wearing surface, a number of feet projeetingfrom the under surface of the body, pads of a material' such asbituminous felt beneath the said feet, pads of La, material .such asbituininous felt upon alternate side faces, a key hole extending fromthe upper wearing surface to the under surface, concentric dscntinuousbeadirs formed in the upper wearing surface around the opening to thekey hole and drainage groove's between the discontinuous beadings for,the purposes set fort-h.

In witnesswhereof I afiix iny signature.

LBERT RANDALL lVELLS.

